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Tag Archives: Harlequin

A fungus-infected ladybird

12 Tuesday May 2026

Posted by sconzani in insects, ladybird

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fungus infecting Harlequin ladybird, Harlequin, harlequin ladybird, Harlequin with fungal infection, Hesperomyces harmoniae, ladybird

This Harlequin ladybird (Harmonia axyridis) has been infected with the fungus previously known as Hesperomyces virescens, that is now known to be specific to the Harlequin so has been renamed Hesperomyces harmoniae. Hopefully, you should be able to make out the short pale-coloured stalk-like growths emerging from between the ladybird’s eyes and along its front left leg. According to the Beetlehangers website, the fungus is being investigated as a means of controlling the Harlequin ladybird, as it is an invasive, non-native species that is threatening the populations of native British species. The fungus is believed to decrease the Harlequin’s ‘mating frequency, winter survival rate, and mobility’ – not very pleasant if you’re a Harlequin but good news for our other ladybird species.

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First beetles

13 Tuesday Jan 2026

Posted by sconzani in insects, winter

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beetle, British beetles, British ladybirds, Harlequin, harlequin ladybird, Harmonia axyridis, ladybird, ladybirds overwintering indoors

Though I’ve mostly been focusing on finding new bird species during this first couple of weeks of 2026, I have also, when the sun has been shining, been keeping an eye out for any bugs or beetles that might have emerged briefly to bask in its relative warmth. So far, that has proved fruitless, and my first beetle sightings of the new year have actually been here at home, in my flat – in fact, as I type this I can see one of them walking along one of the living room blinds. They are ladybirds – all have been Harlequin ladybirds (Harmonia axyridis) – that came flooding in through my open windows just as the winter days began to get colder.

This is quite normal – ladybirds look for places to sleep away the wintery weather. I don’t mind them doing this in my flat apart from one issue; during those blue-sky days when the sun is out all day, my south-facing flat gets quite warm and the ladybirds wake up and start wandering about, looking for a way to get outside again. I have ejected five that seemed particularly agitated, flying in to the glass again and again, but there are at least two still lurking on the blinds or amongst my house plants.

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Harlequins everywhere

11 Tuesday Feb 2025

Posted by sconzani in insects, ladybird, winter

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Tags

British ladybirds, Harlequin, harlequin ladybird, invasive insects, invasive ladybird

I admit to feeling a few pangs of envy when, a couple of days ago, one of the entomologists I follow on social media posted photos of the eleventh species of ladybird they’d sighted this year. I’ve never seen 11 ladybird species in my entire life (my total is 8), let alone in the middle of winter. [Note to self: must try harder!]

Meanwhile, in the local park (and, yes, many are on the railings), apart from a single 7-spot ladybird, the population seems overwhelmingly to be comprised of Harlequin ladybirds, those invasive interlopers that originally lived in Asia but have become one of the most invasive insect species in the world, according to the Buglife website.

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About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

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Recent blog posts

  • A fungus-infected ladybird May 12, 2026
  • Sunning May 11, 2026
  • The Twayblades return May 10, 2026
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